Machine for use in making rubber shoes



Oct. 11, 1932. F. D. KINNEY MACHINE FOR USE IN MAKING RUBBER SHOES FiledOct. 29. 1929 3 Sheets-Sheet 1 Avg/5N 70R;

WRM

Oct. 11, 1932.

F. D. KINNEY MACHINE FOR USE IN MAKING RUBBER SHOES Filed 001;. 29. 19295 Sheets-Sheet 2 Oct. 11, 1932. KlNNEY 1,881,670

MACHINE FOR USE IN MAKING RUBBER SHOES Filed Oct. 29, 1929 5Sheets-Sheet 3 Patented Oct. 11, 1932 tuNiTEosrA'rEs PATENT OFFICE f FAYD. KINNEY, SOUTHBRIDGE, MASSACHUSETTS, .ASSIGNOR TO UNITED SHOEMACHINERY CORPORATION, OF PATERSO JERSEY N, NEW JERSEY, A CORPORATION OFNEW Application filed October 29, 1929. Serial No. 403,313.

This invention relates to machines for use in manufacturing foot wearand is herein illustrated as embodied in a machine for use inmanufacturing rubber overshoes.

In my prior application, Serial N 0. 309,181, filed September 29, 1928,there is described apparatus for assembling the parts of the upper of arubber overshoe upon a form. In the use of that apparatus a vampmounting machine is operated to mount a vamp blank of unvulcanizedrubber wrong side out upon a form to produce a. closed vamp; andthereafter other machines are operated to mount other parts, also wrongside out, upon the vamp and upon each other. The upper, thus assembledwrong side out upon the form, is removed from the form and turned rightside out. Thereafter the assembled upper is placed, together with aninsole, upon a last and the manufacture of the shoe completed includingattaching an outersole and sub jecting the shoe to vulcanization.

The vamp mounting machine of the abovementioned apparatus comprises, ashas been indicated, a form and means for mounting a vamp blank upon it.This form is a com paratively thin one having flat parallel sides sothat, when subsequently passed between pressure rollers, the vamp andother parts of the upper will be pressed firmly against the form andagainst one another. The rear end of this form is rounded from side toside and is curved from top to bottom to correspond to the top-to-bottomcurvature desired at the heel end of the finished shoe.

A According to one feature of the present invention there is provided aform of simplified shape which has no curve from top to bottom at itsrear end whereby the mounting of the rear ends of the vamp upon the formis facilitated, the illustrated form being provided with a rear endwhich is flat. If the new form were made from the old form merely bycutting of the curved rear end of the old form it is obvious that theclosed vamp produced by mounting a vamp blank upon the new form wouldnot be of the same dimensions as the one produced by mounting the sameblank upon the old form. In order,

therefore, to produce upon the new form a closed vamp of the properdimensions, the form ispreferably thickened in a suitable manner, theillustrated form being thickened along its longitudinal middle. Althoughthe rear end ofthe illustrated form is flat, it should be understoodthat, instead of a'flat surface, other cylindrical surfaces may beemployed, a cylindrical surface being one generated by a right line orgeneratrix which moves parallel to a fixed right line or to itself. Thegeneratrix or element as it moves may touch a directrix which may be acurve or a right line in which latter case the generated surface will beflat. Therefore the term cylindrical surface as herein used includes aflat surface.

According to another feature of the invention there is provided incombination with means for holding a form, a plurality of independentlymovable supports, the surfaces of which are also cylindrical in theabove sense, upon which a shoe part may be placed, and means foroperating the supports to apply the shoe part to the form. In theillustrated machine a form of the shape described above is held abovetwo fiat supports upon which the vamp blank rests, and the supports areswung up one after the other to apply the blank to the form.

Other features of the invention relate to means for overlapping the endsof the shoe part at the heel end of the form and to means for trimmingthese ends.

These and other features of the invention including certain details ofconstruction and combinations of parts will be described as embodied inan illustrated machine and pointed out in the appended claims.

Referring now to the accompanying draw- 1I1gS,- I

Fig. 1 is a front elevation of a machine in which the invention isembodied, certain shafts being shown in section, one of the vampsupports being shown as having been swung up into vertical position;

Fig. 2 is a side elevation of the machine with a portion of the lowerpart in section;

Fig. 3 is a horizontal section through the clamping and cuttingmechanism and a portion of the form;

f 4 is a view partly in section and partly in elevation showing moreparticularly the relation of the form'to the means for supporting theshoepart and applying to the form; and i r p p Fig.5 is-a: perspectiveof the operative portion of the form.

the legs" ofthe vamp are In the operation of this machine a shoe art,suchasla vamp, is placed in substan tially' horiaental position upon .ai work sup; port which. comprises two. flat-faced hinged members. Theform.--is held. in position above the vamp, and then the hinged shoesupports are swung upwardly one 1ata time to apply the vamp to the form.The ends of then overlapped upon the heel end'of the form so that, whenthe'operation of the machine has been comin in side,

at the top and the bottomand each side of the forn consists of twoplanes11, 13 which meet-in a rounded ridge15. It has been found that a formofthis general shape when properly proportioned will give to a vampmounted upon it the proper dimensions to I fit over a particular last sothat, when the vamp has been removed from the form it can be assembledtogether with "an insole upon the last. i

Referring now 'to' Fig. 2 in which, as in .Fig. '5; the form is shownbottom side up; the P shaft 27, have outer ends which are square so formhas a rib along its bottom which is received 1n a guideway in an arm 17.This arm is rigid with a bar 18 which 1s vertically slidable' in asuitable guidewayin the frame of the machine; said bar having a pin 19which is received in'a socket in one endof the form. The slide bar 18has at its lower end a oll 21 running in a cam track 23 formed in a cam25 which is fast to a rotary shaft 27. t is thus possible byrotating-the shaft 27 to raise the form or to lower it intothe positionshown. The form is normally moved up into its upperposition and leftthere while the operator places the vamp uponthe'vamp supportingmeans.-Thereafter the form is moved down into the posi. N tionshownpreparatory to causing the sup;

porting means to apply a vamp to the form. There-are two supports forthe vamp, as best'shown in Fig. 4, comprising two plates.

29 and 31-which carry respectively pads 33 i and 35 of'vulcanizedrubber. Inasmuch as these two supports are mounted and operated insubstantially the same manner, the mounting and operation of only one of'theni'will be described in detail. The support '29 has at I its lowerportion near one end (Fig. 2) a pan of lugs 133 and near its other end asimimachine and isheld in lar pair of lugs 135. roller 37 which runs inacurved slot 39 (Fig. 4) formed in a stationary plateetl. The lugs 135carry a roller 43 which runs in a similar curved slot formed in astationary plate 45. In order first to swing the support 29into thedotted line position'shown in Fig. 4 and then to rock the support about,the thick middle portion of the form, the support near. its upper endhas a lug 47 which is loosely pivoted by a pin and slot connection to asegin a suitable track formed in the frame of the that track by an idlegear 51 and by a gear 53-which operates the segmental rack. The gear 53is fast to a shaft 55 so that, by rotating the shaft in one direction,the plate 29 may be moved through the dotted line position in'Fig. i tothe full line position that figure so as to apply a portion of the vamppartly to one of the inclined faces of theside of the formand partly tothe other inclined face. 1 r

The other support 31 is looselypivoted to a segmental rack bar 57 whichis guided in a suitable track in the frame of the machine and is held inthat traclrby an idle gear 59 and by a gear 61 by which it may beoperated.

This gear 61 is fast to a shaft 62 so that, by

' turning thiseshafhthe {support 31 may first 11 of .theform. The shafts55'and 62 may be rotated by any suitable mechanism. In the resentmachine these shafts, as well as the 6 down into the position shown. Theshaft 55 is then rotated to move the support 29 into the position shownand then to move itback into initial position whereby one side of thevamp is appliedto one side of the form. Next the shaft 62 is rotatedfirst in one directionto cause the other half of the vamp to be appliedto the otherjside of the form and then in the opposite direction toreturn the support 31 to normal position. I 7 p it is necessary that Ithe ends of the legs of the vamp bebrought over upon'the rear end of theform as shown in Fig. 5; and itis also desirable that the extreme endsof these legs should be trimmed. To this end the fol- The lugs 133 carrya mental rack bar 49. 'Thi'srack bar is guided slot 77 through whichriedby the vamp-supporting plate 29. With this construction, when theplate29 is swung up into the position shown, the frame 63 is swung with.it. The frame 63 is provided with two clamps which engage one leg of thevamp at two localities. Referring more particularly to Fig. 3 one ofthese clamps is shown at 75, said clamp having a passes a pin 7 9carried by the frame 63. The operative end of the clamp 75 has a jaw 81provided witha recess which fits over a projection formed on the frame63 so that, when the clamp is in the position shown in Fig. 3, the vamp100 is securel y gripped. In order tomove the clamp 75 into thisposition, there is pivoted to the frame 63 at 83 bell crank lever, onearm 85 of which serves as a handle while the other arm87 acts upon theclamp 75. There are two of these clamping members upon the frame 63,asbest shown in Fig. 1, in'which the handle for operating the upperclamp is indicated at 85 and the handle for operating the lower clamp isindicated at 89. Associated with the other vamp support 31 is a frame 91(Fig. 1), said frame having mounted upon it two clamps exactly likethose on the frame 63, the handles for operating these clamps beingindicated at 93 and 95.

'As has'been explainedabove, it is desir; able to trim the ends of thelegs of the vamp which extend over the rear portion of theform, as shownin Fig. 5. In order to trim the ends each frame 63, 91 carries a rollercutter which is 'reciprocatingly mounted in the frame so that, when oneof the frames has been moved to its vertical position this cutter can berun up and down to trim ofi theend of one leg of the vamp. Inasmuch asthese cutters and theirmountings are substantially the same in bothcases, only one of them will be described. Referring again to Fig. 3,the cutter 97 associated with-the frame63'is shown. This cutter isrotatably mounted in a'carrier 99 which has a rectangular groove toreceive a rectangular guide101 integral with the frame 63. Integralwiththe carrier 99 is a handle 104, whichmay'be grasped by the operatorto run the cutter97 up and down so as to sever the end of one leg of thevamp. The other frame 91 (Fig. 1) is provided with a similar cutter 92,the handle of thecarrier of which is indicated at 106. 3

. When the vamp support 29 is swung up into the positions shown in Figs.1, 2 and 3, the frame 63, which carries the clamps 75 and the cutter 97,is swung up past the rear end of the form, as best shown in Fig. 2, butis spaced slightly from said rear end. It is then necessary tomove theframe toward the end of the form in order to apply the end of one leg ofthe vamp firmly to the rear end of the form. To this end the stud 67upon which the frame 63 (as well as the frame 91) ispivotally mounted,is carried by two posts 103 which are integral with a base 105, saidbase being horizontally slidable upon a stationary guide 107. Threadedinto the right-hand end of the base 105, as viewed in Fig. 2, is a pin109 which passes loosely through a lug 111 on the frame, there being acoiled spring 113 located on thepin between the lug 111 and a nut 115threaded upon the outer end of the pin 109. A look nut 117, alsothreaded upon the pin 109, holds the nut 115 from turning. WVith thisconstruction, the base 105 is urged at all times to move toward theright, the normal position. of the base due to the pull of the spring113 being determined by contact of a roll 119, which is carried by thebase 105, with the low portion of a cam 121 whichis mounted upon arotary shaft 123. When this shaft is given half a revolution, forexample by means of a hand crank having a socket which fits on the outersquare end of the shaft, the base 105 and with it the frame 63 is movedto the left to press the end of one leg of the vamp against the rear endof the form 6 (see Fig. 3). 1

Assuming that the two vamp supports 29, 31 are in their initialhorizontal position and that the form 6 is in its initial upperposition, a vamp is placed upon the rubber pads 33, of, the vampsupports, it being understood that there are marks upon these pads toinsure that the vamp shall be. properly placed. The shaft 27 is thenrotated until the form 6'is brought down into the position shown inFigs. 1, 2 and 3. The clamps 75 of the frame 63 and the similar clampsof the frame 91 are then operated by means of the handles 85, 89, 93 and95 to grip the ends of the legs of the vamp. The shaft is rotated in adirection to cause the vamp support 29 to move through the dotted lineposition into the full line position of Fig. 4. I This swinging movementof the support 29 raises the clamp-andtzutter frame 63 intoasubstantially upright position, as shown in Figs. 1, 2 and 3. The shortshaft 123 is given a half rotation to cause the frame 63 to press theend of one leg of the vamp against the rear end of the form 6; and thenthe cutter 97 is operated to trim the end of that leg of the vamp. Theshort shaft 123 is then given another half revolution to permit thespring 113 to withdraw the frame 63 slightly from the rearend of theform. The shaft 55 is turned to return the vamp support 29 and the frame63 to their normal substantially horizontal positions. The shaft 62 isthen rotated to swing up the other vamp support 31 and the other frame91. The short shaft 123 is given half a rotation to move theclampandmutter-carrying frame 91 toward the rear end of'the form, andthe cutter 92 which is associated with the frame 91 is moved u and downby means of its handle 106 to sever form havingsides the surfaces ofwhich are i I position. The

I described; ,3

cheese or the other leg ofthe vanip it being understood that the framemembers '63 and 91 and their-clamps are so, constructed that the ends ofthe vamp ,are overlapped upon the rear end of the form,'as shown in Fig.5. The' sliafts-123 and 62 havethen rotatedin the order-named, theformer to' withdraw the frame 91 slightly from the rear end of theformand the latter to return thevamp support, 31 and the frame 91 totheir initial substantially horizontal position. The'shaft 27 is-rotatedto raise the form to its uppermost operator then removes the vamp 100from the form and places a second 'vampzupen the supports'29,31'. v-

Although the invention has been described as einbodiedin a particularmachine it should be understood that the; invention is not limited inthe scope of its appllcation to the particulartmachine which has beenshown and The form of the that of prior application Serial No. 509,181,hassijdes the surfaces of which are cylindrical andis provided withmeans whereby it may be held by various machines used in applyingcertain parts of the upper to the form and to each' other; and broadclaims to all Y sub ect 7 mattercommon to thepresent application and tothe prior application have been presented in the prior'application. in IY Havi g thus'described my invention, what Iclaimas new anddesire tosecure by Letters 7 Patent of the United States is:

- 1. A machine of the class described having,

in combinatiom'means for holding a form the surfaces offlthesidesofwhich are generated by a right'line moving parallel to itself, and

" means for supporting a shoe part, said means being adapted to beoperated why the shoe part directly. against the said surfaces of the2.:A machine of the class described having,

in combination, means for holding a form the s'urfacesto'f the sides andre'arendpf which are each generated by aright line 7 moved vparallel toitself, means for supportand ing a shoe part, means for operating thesupporting means to apply a portion of the shoe part directly to theside surfaces of the form, meansflfor applying another portion of theshoe part to the surface of the ,rear end fQftllB form'.- .7 t

c 3; A machine of the-class; described having, in combinationfmeansforfiholding a a form having, sides the surfaces of which are apply theshoe part to the form. 7

generated bya right line moved parallel to I itself, a pluralityofsupports for a shoe part the surfaces of saidsupportsbeingalsogenerated by a right line movedparallel to itself, andmeansforrocking the supports to l. Ainachineiof the class describedhav-' ing, in combination,.-means for holding a present application,like 7 generated by 'a' right lineimoved parallel to A itself, aplurality ofsupports for a shoe part,

the surfaces of said supports being also gen 5. AL -machine of'the classdescribed haw ing, in combination,.means forholding'a form the surfacesofone .s1d'eof whlchcom- :prise two surfaces each generated by alrightline moved parallel to a fixed right line, said twosurfacesbeinginclined to ,each other and 'meeting ina ridge, a support foraiportion of a shoe part, said support having a surface coextensivewithsaid two surfaces of the form,

and means for moving said support to apply theshoe part to the twosurfaces of the form.

' 6. Amachine of the'class described hav- 1 ing, in combination, meansfor holding a form'the, surfaces of one-side ofwhich comprise twosurfaces the elements'of'both of which are parallel, said surfaces beinginclined' to each other and meeting in a ridge, a support for a portionof a shoe part, and means for swingingrthe-support successively aboutdifferent axes each parallel to the elements of said surfaces to applythe shoe part to the'surfaces of "therform; 7. A machine of the classdescribed having, 1n combinationfmeans. for holding a form the surfacesof-each side'of' whichcomprise two surfaces inclined to each otherandmeeting in aridge, a plurality of supportsfor a shoe part, andomeans forrocking each'support first about an axis located substantially atthe'top of the form" and then about an axis coinciding substantiallywith one of the a'thiclrer'middle' portion, aplurality of supports'for avamp one for each side of said vamp,and means for swinging each supportinto afposition to apply aiportion of the vamp to the adjacent portionof the form and for thereafter rocking each support about the thickportion of the form to applyianother portion of the vamp to the remoteportion of theform. I Y a 9. A machine of the class described having, incombination, means for .supporting'a form the surfaces of the sides'ofwhich form each comprise two surfaces arranged at an angle 7 to eachother, two supports'upon which a .vamp may be placed, and means formoving each support in such manner as" to cause it to apply one portionof the vamp to the surfaces on one side of the form and thenito applyanother portion to the surfaces .on the other side of the form.

' 10.,A machine of the class described having, in combination, means forholding a form, a'plurality' of supports? for a shoe part located belowthe form, a'pivot carried by each support, curved tracks in which thepivots are respectively held, and means for swinging the supports abouttheir pivots and for causing the pivots to move in their tracks. 11. Amachine of the class described hav'- ing, in combination, means forholding a form, means for applying a shoe part to the form, and meansfor trimming the shoe part on the form, said means comprising a rollercutter movable in a predetermined path.

12. A machine of the class described having, in combination, means forholding a form, shoe part supports movable to apply the shoe part to thetop and sides of the form, clamping and cutting mechanisms for engaginga margin of the blank at one end, means for causing the supports to moveinto proximity to the sides of the form and for causing the clamping andcutting mechanisms to move with the supports into proximity to an end ofthe form, and means for moving the clamping mechanisms independently ofthe supports closer to the end of the form 13. A machine of the classdescribed hav ing, in combination, means for holding a form, a pluralityof independently movable substantially fiat supports upon which a shoepart may be placed, and means for operating the supports to press theshoe part directly to the form. a

14. A machine of the class described having, in combination, -means forholding a form stationary, a plurality of independently movable supportsthe surfaces of which are substantially fiat upon which a shoe part maybe placed, and means for moving said supports to apply the shoe partagainst the form by direct pressure.

15. A machine of the class described'having, in combination, twosubstantially flat supports upon which a vamp may be placed, means forholding a form in operative rela: tion to the supports, means forcausing one of the supports first to move toward the form to apply oneside of the vamp to one side of the form and then to move away from theform, and means for thereafter causing the other support to movesimilarly.

16. A, form for use in the manufacture of .boots and shoes to impartpreliminary shape to apart of a shoe upper said form having side andrear surfaces adapted to receive respectively side and rear portionsofthe shoe part, each of said surfaces being formed by a rectilineargeneratrix moved parallel to itself.

17. A form for use in the manufacture of boots and shoes to impartpreliminary shape to a part of a shoe upper, said form having asubstantially flat'rear end adapted toreceive rear portions of the'shoepart and sides adapted to receive side portions of the shoe part, theform being thicker at its middle than at its top andbottom, and thesides thereof having surfaces each generated by a llf

